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//=========================================================
// MusE
// Linux Music Editor
// $Id: tempolabel.cpp,v 1.1.1.1 2003/10/29 10:06:21 wschweer Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
//=========================================================
#include <qapplication.h>
#include <qstyle.h>
#include <qvalidator.h>
#include "tempolabel.h"
//---------------------------------------------------------
// TempoLabel
//---------------------------------------------------------
TempoLabel::TempoLabel(QWidget* parent, const char* name)
: QLabel(parent, name)
{
setFrameStyle(WinPanel | Sunken);
setLineWidth(2);
setMidLineWidth(3);
_value = 1.0;
setValue(0.0);
setIndent(3);
setMinimumSize(sizeHint());
}
//---------------------------------------------------------
// setVal
//---------------------------------------------------------
void TempoLabel::setValue(int val)
{
setValue(double(val/1000.0));
}
void TempoLabel::setValue(double val)
{
if (val == _value)
return;
_value = val;
QString s = QString("%1").arg(val, 3, 'f', 2);
setText(s);
}
//---------------------------------------------------------
// sizeHint
//---------------------------------------------------------
QSize TempoLabel::sizeHint() const
{
QFontMetrics fm(font());
int fw = 4;
int h = fm.height() + fw * 2;
int w = 6 + fm.width(QString("000.00")) + fw * 2; // 6=indent
return QSize(w, h).expandedTo(QApplication::globalStrut());
}
//---------------------------------------------------------
// TempoSpinBox
//---------------------------------------------------------
TempoEdit::TempoEdit(QWidget* parent, const char* name)
: QSpinBox(parent, name)
{
setLineStep(100);
setMaxValue(60000);
setMinValue(3000);
setValidator(new QDoubleValidator(this));
connect(this, SIGNAL(valueChanged(int)), SLOT(tempoChanged(int)));
}
//---------------------------------------------------------
// sizeHint
//---------------------------------------------------------
QSize TempoEdit::sizeHint() const
{
QFontMetrics fm(font());
int fw = style().pixelMetric(QStyle::PM_DefaultFrameWidth, this);
int h = fm.height() + fw * 2;
int w = 2 + fm.width(QString("000.00")) + fw * 4 + 30;
return QSize(w, h).expandedTo(QApplication::globalStrut());
}
//---------------------------------------------------------
// mapValueToText
//---------------------------------------------------------
QString TempoEdit::mapValueToText(int val)
{
double v = val / 100.0;
return QString("%1").arg(v, 3, 'f', 2);
}
//---------------------------------------------------------
// mapTextToValue
//---------------------------------------------------------
int TempoEdit::mapTextToValue(bool* ok)
{
double v = text().toDouble(ok);
return int(v * 100);
}
//---------------------------------------------------------
// tempoChanged
//---------------------------------------------------------
void TempoEdit::tempoChanged(int val)
{
emit valueChanged(double(val)/100.0);
}
//---------------------------------------------------------
// setValue
//---------------------------------------------------------
void TempoEdit::setValue(double val)
{
QSpinBox::setValue(int(val*100));
}
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